document.write( "Question 44240: find all numbers not in the domain of the function\r
\n" ); document.write( "\n" ); document.write( "f(x)=x^2-16 over x^2-2x-8\r
\n" ); document.write( "\n" ); document.write( "help \n" ); document.write( "

Algebra.Com's Answer #29165 by Nate(3500) $\"\"$ $\"About$

You can put this solution on YOUR website!
f(x) = (x^2-16)/(x^2-2x-8)
\n" ); document.write( "f(x) = ((x + 4)(x - 4))/((x - 4)(x + 2))
\n" ); document.write( "You can not divide by zero.
\n" ); document.write( " $\"x+-+4+=+0\"$ and $\"x+%2B+2+=+0\"$
\n" ); document.write( " $\"x+=+4\"$ and $\"x+=+-2\"$ \n" ); document.write( "

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